n.
1.
Power, might, force, potency, puissance, nerve, vigor.
2.
Solidity, toughness, hardness.
3.
Impregnability.
4.
Lustiness, brawniness, robustness, stoutness.
5.
Fortitude, courage, spirit, animation, firmness, resolution.
6.
Validity, cogency, efficacy, soundness.
7.
Vigor ( of style ), energy, nervous diction, nerve, force.
8.
Support, security, stay.
9.
Intensity, brightness, brilliance, clearness, vividness.
10.
Spirit, virtue, excellence, potency.
11.
Vehemence, force, impetuosity, violence.
12.
Energy, boldness, vigor.
13.
Armament, force.